Packaging tray insert for a container



FIG. 1 is a top perspective view of a packaging tray insert for a container showing my new design, with a container being shown in broken lines for the purpose of illustrating environmental use only;

FIG. 2 is a top plan view;

FIG. 3 is a front elevational view;

FIG. 4 is a rear elevational view;

FIG. 5 is a side elevational view; and

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a packaging tray insert for a container, substantially as shown and described. 